Category Archives: sleep deprivation

Stretch for Better Flexibility

I love this post! I hope you will read it and learn from it too. The more I read and write about health and fitness, the more I appreciate that ‘little things mean a lot.’ Little things like stretching, getting a good night’s sleep and walking, not living a sedentary lifestyle. These are elements that can keep you in tip top shape, mentally and physically for years to come.

To read further on some of these little things, Check out my Pages:

Do you know the dangers of too much sitting?

How important is a good night’s sleep?

Why you should walk more

Tony

Training For Life

This article was first published in The Hindu on 2nd October 2010.

unnamedI see people completing their workout routines and rushing through a few cursory stretches; mainly to appease the trainer, mind elsewhere, in a hurry to get going. Their flexibility does not get any better; they can still barely bend forward to reach for their thighs leave alone their toes, but they see no reason to waste time toiling with “stretches’. They have more important things to do, their cardio, so they can burn an indecent number of calories, push as much weight as they can to gain that well sculpted physique. Flexibility? Yes, well, let’s be done with it as quickly as possible!

One couldn’t be more mistaken. An inflexible muscle is more prone to injury and cannot perform as well as it should. Good quality muscle is supple, strong AND flexible.

unspecified-2Flexibility is the corner stone of…

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Sleep loss linked to late time snacking, junk food cravings, obesity, diabetes

Nighttime snacking and junk food cravings may contribute to unhealthy eating behaviors and represent a potential link between poor sleep and obesity, according to the University of Arizona Health Sciences.

Nighttime snacking and junk food cravings may contribute to unhealthy eating behaviors and represent a potential link between poor sleep and obesity, a study by University of Arizona Health Sciences sleep researchers stated.

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Photo by bruce mars on Pexels.com

The study was conducted via a nationwide, phone-based survey of 3,105 adults from 23 U.S. metropolitan areas. Participants were asked if they regularly consumed a nighttime snack and whether lack of sleep led them to crave junk food. They also were asked about their sleep quality and existing health problems. Continue reading

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Filed under circadian cycles, diabetes, good night's sleep, junk food, obesity, sleep, sleep deprivation, Snacking

Lack of sleep may be linked to risk factor for Alzheimer’s disease – Study

This is kind of a yin/yang thing with exercise vs rest. Just as I write about the myriad benefits of exercise regularly here, it seems there are almost as many ways that not getting enough sleep damages us. If you would like to learn more, check out my Page – How important is a good night’s sleep?

Losing just one night of sleep led to an immediate increase in beta-amyloid, a protein in the brain associated with Alzheimer’s disease, according to a small, new study by researchers at the National Institutes of Health (NIH). In Alzheimer’s disease, beta-amyloid proteins clump together to form amyloid plaques, a hallmark of the disease.

While acute sleep deprivation is known to elevate brain beta-amyloid levels in mice, less is known about the impact of sleep deprivation on beta-amyloid accumulation in the human brain. The study is among the first to demonstrate that sleep may play an important role in human beta-amyloid clearance.

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“This research provides new insight about the potentially harmful effects of a lack of sleep on the brain and has implications for better characterizing the pathology of Alzheimer’s disease,” said George F. Koob, Ph.D., director of the National Institute on Alcohol Abuse and Alcoholism (NIAAA), part of the National Institutes of Health, which funded the study.

Beta-amyloid is a metabolic waste product present in the fluid between brain cells. In Alzheimer’s disease, beta-amyloid clumps together to form amyloid plaques, negatively impacting communication between neurons.

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Filed under Alzheimer's disease, Alzheimer's risk, dementia, good night's sleep, sleep, sleep deprivation, Uncategorized

Do Sleep Habits Change for Seniors?

With 10,000 baby boomers becoming 65 every day, the question of sleep becomes highly relevant. The Washington Post says, “Scientists have also discovered the role of telomeres in aging. These are caps on the ends of strands of DNA that protect a cell’s genetic material when it divides. But they get a little shorter with each division, and once they get too short, a cell can no longer function normally. Older people have shorter telomeres, but so do people with high stress and poor sleep habits.”

First of all the myth that seniors need less sleep is – a myth. Dr. Michael W. Smith of WebMD offers the following definitive answer, “As children and adolescents, we need more sleep than we do as young adults. But by our senior years, we need the same seven to nine hours a night we did as teens.” 
On the other hand, the nature and quality of sleep does change as we age.

sleep_puppy_iStock_000015227531MediumHrayr P. Attarian, MD, in a talk before Northwestern Memorial Hospital’s Healthy Transitions Program® said that although we get less sleep as we age, we need the same amount. Older people take slightly longer to fall asleep than younger ones. Also, sleep efficiency falls as we age. The 18 to 30 year olds have 95 percent sleep efficiency; 31 to 40 year olds enjoy 88 percent sleep efficiency; 41 to 50 year olds have 85 percent sleep efficiency and 51 to 70 year olds are down to 80 percent sleep efficiency.

So the bottom line seems to be seniors need as much asleep as ever, but they have a harder time achieving it.

Medications play a part in senior sleep habits, too. As we age we often need more medications to get us through the day and night. Dr. Attarian warned about Tylenol and Advil PM specifically. He said that they worsen prostate conditions in men and that they impair reflexes in both sexes into the next day.

To read further on sleep, check out my page How Important is a good night’s sleep.

Tony

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Filed under aging, aging brain, baby boomers, good night's sleep, seniors, sleep, sleep deprivation, successful aging

Less than 8 hours of sleep psychologically dangerous – Study

I have written extensively about how important a good night’s sleep is to living a healthy life. Now, it seems there are potential psychological vulnerabilities, too. I will give the link at the end of post.

Sleeping less than the recommended eight hours a night is associated with intrusive, repetitive thoughts like those seen in anxiety or depression, according to new research from Binghamton University, State University of New York.

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Binghamton University Professor of Psychology Meredith Coles and former graduate student Jacob Nota assessed the timing and duration of sleep in individuals with moderate to high levels of repetitive negative thoughts (e.g., worry and rumination). The research participants were exposed to different pictures intended to trigger an emotional response, and researchers tracked their attention through their eye movements. The researchers discovered that regular sleep disruptions are associated with difficulty in shifting one’s attention away from negative information. This may mean that inadequate sleep is part of what makes negative intrusive thoughts stick around and interfere with people’s lives . Continue reading

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Lack of Sleep Boosts Levels of Alzheimer’s Protein – Study

I wrote about the dangers of sleep deprivation earlier this week. Here is the opening paragraph of that post: Regular readers know that I am an old man and very highly value a good night’s sleep. That is not the way I felt 20 years ago when I was in the working world. In those days I felt strongly that sleep was an intrusion on my life and activities and resented having to do it. I got a little wiser as the years went by. Please check out my Page – How important is a good night’s sleep? for significantly more details on this very important aspect of living a long healthy life.

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Have you resolved to take better care of yourself in the new year? Here’s a relatively painless way to do it: Catch a few more zzz’s every night. A third of American adults don’t get enough sleep, according to the Centers for Disease Control and Prevention..

Chronic poor sleep has been linked to cognitive decline, and a new study from Washington University School of Medicine in St. Louis explains why: As a wakeful brain churns away through the night, it produces more of the Alzheimer’s protein amyloid beta than its waste-disposal system can handle. Levels of the protein rise, potentially setting off a sequence of changes to the brain that can end with dementia.

“This study is the clearest demonstration in humans that sleep disruption leads to an increased risk of Alzheimer’s disease through an amyloid beta mechanism,” said senior author Randall Bateman, MD, the Charles F. and Joanne Knight Distinguished Professor of Neurology. “The study showed that it was due to overproduction of amyloid beta during sleep deprivation.” Continue reading

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Filed under aging brain, Alzheimer's, Alzheimer's disease, Alzheimer's risk, brain, brain damage, brain function, brain health, good night's sleep, sleep, sleep deprivation

Why sleep deprivation affects each of us differently

Regular readers know that I am an old man and very highly value a good night’s sleep. That is not the way I felt 20 years ago when I was in the working world. In those days I felt strongly that sleep was an intrusion on my life and activities and resented having to do it. I got a little wiser as the years went by. Please check out my Page – How important is a good night’s sleep? for significantly more details on this very important aspect of living a long healthy life.

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Losing sleep in favor of some good holiday fun a few times each year is nothing to worry about, but chronic sleep deprivation can have adverse health effects. Some of us are affected more than others, however, and new research helps us understand why.

For some of us, it may be harder to perform certain cognitive tasks after a sleepless night.

With 50 to 70 million adults in the United States having a “sleep or wakefulness disorder,” the Centers for Disease Control and Prevention (CDC) consider sleep deprivation a “public health concern.”

Sleep loss is especially alarming given its status as a significant risk factor for traffic accidents and medical mishaps, as well as posing a danger to one’s health.

Insufficient sleep could increase the risk of high blood pressure, diabetes, obesity, and cancer, among others conditions.

Cognitively, sleep deprivation has a wide range of adverse effects. In fact, the CDC report that 23.2 percent of U.S. adults aged 20 and above have trouble concentrating, and another 18.2 percent say that they have trouble remembering things as a result of losing sleep. Continue reading

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Filed under aging brain, brain, brain function, brain health, good night's sleep, sleep, sleep deprivation

Eating Fish every week linked to better sleep, higher IQ – Study

Children who eat fish at least once a week sleep better and have IQ scores that are 4 points higher, on average, than those who consume fish less frequently or not at all, according to new findings from the University of Pennsylvania published in Scientific Reports, a Nature journal.
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Previous studies showed a relationship between omega-3s, the fatty acids in many types of fish, and improved intelligence, as well as omega-3s and better sleep. But they’ve never all been connected before. This work, conducted by the School of Nursing’s​​​​​​​ Jianghong LiuJennifer Pinto-Martin and Alexandra Hanlon and Penn Integrates Knowledge Professor Adrian Raine, reveals sleep as a possible mediating pathway, the potential missing link between fish and intelligence. Continue reading

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Filed under cognition, fish, good night's sleep, intelligence, sleep, sleep deprivation

Daylight Saving Time “fall back” doesn’t equal sleep gain – Harvard

Don’t forget to set your clock back tonight before you go to sleep.

Daylight Saving Time officially ends at 2:00 am this Sunday. In theory, “falling back” means an extra hour of sleep this weekend.
Winston Churchill once described Daylight Saving Time like this: “An extra yawn one morning in the springtime, an extra snooze one night in the autumn… We borrow an hour one night in April; we pay it back with golden interest five months later.”

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That’s an overly optimistic view. In reality, many people don’t, or can’t, take advantage of this weekend’s extra hour of sleep. And the resulting shift in the body’s daily sleep-wake cycle can disrupt sleep for several days, according to Anthony Komaroff,M.D., Executive Editor, Harvard Health Letter.

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Sorry, I couldn’t resist this one.

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Give Yourself More Credit for Doing These Things

There are some really nice positive ideas here. What seem like little things often count plenty in the big picture.

Tony

Our Better Health

Let’s do a roll call: who here has been giving themselves a hard time lately? If this is you, it’s time to cut yourself some slack! You may not realize it, but there are countless things you accomplish every day that are absolutely praiseworthy.

No, really! If we don’t give ourselves credit for the small stuff, how can we feel comfortable patting on ourselves when we accomplish something massive?

The next time you start doubting yourself and your capabilities, reflect on this list as a reminder of all that you do that is right as rain. And give yourself some credit – you really deserve it.

1. Catching Some ZZZs

Getting enough sleep every night is not an easy feat! Whether we’re a working parent of triplets or someone who is struggling with managing their anxiety levels, the fact that we get as many ZZZs as we can is a…

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Filed under good night's sleep, Positive Psychology, positive thinking, positivity, sleep, sleep deprivation

30 Weirdly fascinating health and body facts – Infographic

Thought you might enjoy this. I certainly did.

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Infographic created by Vapester .

Tony

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Filed under bones, good night's sleep, healthy bones, sleep deprivation, smoking, Smoking dangers

Beware of blue light at night – Harvard

Sleep, like walking, is one of the critical elements of good health very commonly not appreciated by the man on the street. I have a Page – How important is a good night’s sleep with a ton of information on it.

Here is some valuable info from the Harvard Health Letter on getting a good night’s sleep.

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Until the advent of artificial lighting, the sun was the major source of lighting, and people spent their evenings in (relative) darkness. Now, in much of the world, evenings are illuminated, and we take our easy access to all those lumens pretty much for granted.

But we may be paying a price for basking in all that light. At night, light throws the body’s biological clock—the circadian rhythm—out of whack. Sleep suffers. Worse, research shows that it may contribute to the causation of cancer, diabetes, heart disease, and obesity. (My emphasis)

But not all colors of light have the same effect. Blue wavelengths—which are beneficial during daylight hours because they boost attention, reaction times, and mood—seem to be the most disruptive at night. And the proliferation of electronics with screens, as well as energy-efficient lighting, is increasing our exposure to blue wavelengths, especially after sundown.

Daily rhythms influenced by light

Everyone has slightly different circadian rhythms, but the average length is 24 and one-quarter hours. The circadian rhythm of people who stay up late is slightly longer, while the rhythms of earlier birds fall short of 24 hours. Dr. Charles Czeisler of Harvard Medical School showed, in 1981, that daylight keeps a person’s internal clock aligned with the environment.

The health risks of nighttime light

Study after study has linked working the night shift and exposure to light at night to several types of cancer (breast, prostate), diabetes, heart disease, and obesity. It’s not exactly clear why nighttime light exposure seems to be so bad for us. But we do know that exposure to light suppresses the secretion of melatonin, a hormone that influences circadian rhythms, and there’s some experimental evidence (it’s very preliminary) that lower melatonin levels might explain the association with cancer.

A Harvard study shed a little bit of light on the possible connection to diabetes and possibly obesity. The researchers put 10 people on a schedule that gradually shifted the timing of their circadian rhythms. Their blood sugar levels increased, throwing them into a prediabetic state, and levels of leptin, a hormone that leaves people feeling full after a meal, went down.

Even dim light can interfere with a person’s circadian rhythm and melatonin secretion. A mere eight lux—a level of brightness exceeded by most table lamps and about twice that of a night light—has an effect, notes Stephen Lockley, a Harvard sleep researcher. Light at night is part of the reason so many people don’t get enough sleep, says Lockley, and researchers have linked short sleep to increased risk for depression, as well as diabetes and cardiovascular problems.

The power of the blues

While light of any kind can suppress the secretion of melatonin, blue light at night does so more powerfully. Harvard researchers and their colleagues conducted an experiment comparing the effects of 6.5 hours of exposure to blue light to exposure to green light of comparable brightness. The blue light suppressed melatonin for about twice as long as the green light and shifted circadian rhythms by twice as much (3 hours vs. 1.5 hours).

In another study of blue light, researchers at the University of Toronto compared the melatonin levels of people exposed to bright indoor light who were wearing blue-light–blocking goggles to people exposed to regular dim light without wearing goggles. The fact that the levels of the hormone were about the same in the two groups strengthens the hypothesis that blue light is a potent suppressor of melatonin. It also suggests that shift workers and night owls could perhaps protect themselves if they wore eyewear that blocks blue light. Inexpensive sunglasses with orange-tinted lenses block blue light, but they also block other colors, so they’re not suitable for use indoors at night. Glasses that block out only blue light can cost up to $80.

Less-blue light

If blue light does have adverse health effects, then environmental concerns, and the quest for energy-efficient lighting, could be at odds with personal health. Those curlicue compact fluorescent lightbulbs and LED lights are much more energy-efficient than the old-fashioned incandescent lightbulbs we grew up with. But they also tend to produce more blue light.

The physics of fluorescent lights can’t be changed, but coatings inside the bulbs can be so they produce a warmer, less blue light. LED lights are more efficient than fluorescent lights, but they also produce a fair amount of light in the blue spectrum. Richard Hansler, a light researcher at John Carroll University in Cleveland, notes that ordinary incandescent lights also produce some blue light, although less than most fluorescent lightbulbs.

What you can do

  • Use dim red lights for night lights. Red light has the least power to shift circadian rhythm and suppress melatonin.
  • Avoid looking at bright screens beginning two to three hours before bed.
  • If you work a night shift or use a lot of electronic devices at night, consider wearing blue-blocking glasses or installing an app that filters the blue/green wavelength at night.
  • Expose yourself to lots of bright light during the day, which will boost your ability to sleep at night, as well as your mood and alertness during daylight.When I work on my computer late at night, I always wear a pair of blue blocker sunglasses. You can buy them on Amazon for under $20. I have no problems getting to sleep.

    Tony

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Filed under good night's sleep, harvard health letter, Harvard Medical School, sleep, sleep deprivation

7 Sleep mistakes you don’t know you’re making – Infographic

Sleep is one of the truly under-appreciated aspects of living a long and healthy life. I know for sure that when I was in the working world, I pretty much considered sleep to be an imposition on my busy life.

Times, and my mind, have changed. Please check out my Page – How important is a good night’s sleep for more on this crucial aspect of our daily lives.

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Tony

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Filed under brain, brain function, brain health, good night's sleep, sleep, sleep deprivation, Uncategorized

The Sleep Cure: The Fountain of Youth May Be Close at Hand

I couldn’t agree more with these healthy sleep sentiments. Check out my Page – How important is a good night’s sleep for more details.

Tony

Mark Zielinski knew he was onto something when his mice stopped sleeping. Normally, the animals woke and slept on a 12-hour cycle. When the lights were on in the lab, the mice were active. When it went dark on a timer, down they went. But Zielinski, who teaches psychiatry at Harvard Medical School, had recently […]

via The Sleep Cure: The Fountain of Youth May Be Closer Than You Ever Thought — Our Better Health

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Daylight Saving Time “fall back” doesn’t equal sleep gain – Harvard

Don’t forget to set your clock back tonight before you go to sleep.

Daylight Saving Time officially ends at 2:00 am this Sunday. In theory, “falling back” means an extra hour of sleep this weekend.
Winston Churchill once described Daylight Saving Time like this: “An extra yawn one morning in the springtime, an extra snooze one night in the autumn… We borrow an hour one night in April; we pay it back with golden interest five months later.”

8b273653382c52dac7a0219269c9a889

That’s an overly optimistic view. In reality, many people don’t, or can’t, take advantage of this weekend’s extra hour of sleep. And the resulting shift in the body’s daily sleep-wake cycle can disrupt sleep for several days, according to Anthony Komaroff,M.D.,  Executive Editor, Harvard Health Letter.

70dce882-d457-4753-bff4-fe5991baa244.jpg

Sorry, I couldn’t resist this one.

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22 Fascinating facts about sleep – Infographic

To many of us (particularly in the working world) sleep is an unnecessary interruption in our day. But, the fact is that sleep is a vital bodily function that we must get enough of or we will pay the price. Enjoy the infographic, but please check out my Page – How important is a good night’s sleep.

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Tony

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